Preheat: Preheat oven to 400℉.
Prepare Tortillas: Cut the corn tortillas into 6 triangular slices to make chips.
Heat Oil: Pour the oil into a large pot or pan, should be 1/4 of an inch deep. Heat the oil to 350℉, oil should bubble when tortillas are dipped in.
Fry Tortillas: Carefully and working in batches, add the tortilla slices to the hot oil in a single layer. Allow to fry for about 1 minute, then using metal tongs, turn the chips to fry the other side. Chips should be firm and golden.
Remove the tortilla chips to a plate lined with a paper towel, or a large baking sheet lined with a cooling rack. Sprinkle the chips with salt.
Continue this process until all chips are fried.
Prepare Baking Sheet: Line a large baking sheet with a silicone baking mat, parchment paper, or foil. If using foil, spray with baking spray.
Lay the tortilla chips in a single layer on the baking sheet.
Top the Chips: Top each chip with a spoonful of refried beans, a sprinkle of shredded cheese and a pickled jalapeno.
Bake: Bake in the oven for about 8 minutes until the cheese is melted.
Serve the nachos warm with sour cream, guacamole and salsa on the side if desired.